Spring winder



NOV. 6, 1945".' L .RaBUC'zKQsKl 2,388,381;

' SPRING WIND-ER v Filed Feb. l0, 1944 2 Sheets-Shed'l l 1N VEN TOR.

Nov. 6, 1945.v L R, BUCZKOSK.. 2,388,383

sP'RINGIwINDER Filed Feb. 1o, 1844 2l sheets-sheet 2 Patented Nov. 6, 1945 UNITED STATES PATENT OFFICE 2,388,323? SPRING WINDER Leonard R. Buczkoski, Detroit, Mich. Application February 10, 1944, Serial No. 522,195

3 claims.

The purpose of my invention is to provide a practical and sturdy device for making coil springs out of Wire, even when the Wire out of which the springs are to be made is of a relative- 1y large diameter such as Would exceed the capac ity of conventional hand operated devices for making springs.

Another purpose of my improvement is to provide a device capable of easy and quick adjustment to the pitch of the springto be formed and to the diameter of `the wire employed in forming said spring.

I shall now describe my improvement with reference to the accompanying drawings in which,

Fig. 1 is a side elevation of my spring Winder,

including a supporting member which is shown partly broken 01T;y

Fig. 2 is a plan view of my spring Winder with out a Wire feeder which is a part of said Winder;

Fig. 3 is a sectional view of a detail of construction taken on line 3-3 of Fig. 1 ;4

Fig. 4 is a front elevation of my spring Winder;

Fig. 5 is a reduced perspective View of the winder with a mandrel and a partly Wound spring thereon;

Fig. 6 is a sectional view on line 6-5 of Fig. 2;

Fig. 7 is a sectional View on line 'I--l of Fig. 2;

Fig. 8 is a perspective View of the wire feeder, forming a part of my winder.

. Similar numerals refer to throughout the several views.

My Winder includes a horizontal base Iii on an upright supporting column Il. At one end, which shall be designated as the front end, a plate I2 is ai'xed to base Il) by' means of screws I3, the plate being set at an angle into a V- shaped formation with said base. In its upper portion the plate contains a rectangular window I4 the purpose of which will be described below. Disposedon the surface of base I0, in a sliding relation thereto and parallel to its longer side, is a bar I5, ending in a butt I5, having a at face at right angle to base I0. The butt is of a size to enter into window I4. A guide l'I, having an inverted groove I8, ts over the top of bar I5 and is secured to base I0 by means of a threaded bolt I9, the head of which rests on a Washer 20. Pins 2|, shown in Fig. 2, being in a sliding engagement with corresponding holes in guide II, serve to keep said guide in proper alinement with the sides of base I0.

To eiiect a longitudinal adjustment of bar I5, I have provided a cross link 4I having axial end pins 48 and 49, said pins being seated in sockets in side plate 24' and bar I5, respectively. A hansimilar partsy by means of screws 32.

dle 50, having a shankSI, is hingedly connected by means of said shank to link 4l.

Attached to one side of base I0 is a stud 22, held in place by screws 23. The stud serves as a support for a sliding side plate 24, having a slot 25 extending in the direction of the longitudinal axis of said plate. As said stud is disposed Within the slot, the arrangement makes it possible toadjust the relative position of the plate with respect to the length of the base. A screw 26 passing through the slot into the side of base I 0 serves as a means of holding the plate in a selected position.

Aiixed to the frontof the side plate 24, by means of a connecting member 21, is a head 28 in a sliding engagement with the connecting member 21 by means of a slot 29 cut in said member, a pin 3D, projecting into the slot from the side of head 28, and a bolt 3|, having its head outside theslot and being screwed into lsaid head 28. The arrangement permits the head to be adjusted vertically to a desired height and to be retained at said height by Ameans of said bolt 3I The connecting member 2'I is secured to plate 24 The front surface of head 28 is fiat, set at right angle to base I0, and is cut off diagonally, as best shown in Fig. 4. A component part of head 28 is a spacer 33, having the shape of an angle bar with i-ts front side cut to form a Wedge 34. The

face of the wedge projects beyond the front l surface of head 28, The extent of said projection may be controlled by .a pair of screws 35 beside the groove, are intended to prevent the Wire to be used in making springs from buckling out of the groove. The clamp, as will be noticed, is U-shaped, one of its legs, 44, being aiiixed to bar 38, and the other, 45, having a screw 46 for` best shown in Fig. '1, consists of a at substantially rectangular unit with a central opening 54, circular in shape except for a V-shaped recess 55 for the reception of said mandrel. The mandrel is kept in place in said recess by means of a'diagonal set screw 56. A jaw 5l, controlled by a screw 58, serves to grip the free end of the Wire to be wound on said mandrel, A rod 69 tted into said clamp 53, serves as a lever for rotating the mandrel around its axis..

To complete the descriptionof my Winder, I wish to add that the base l islprovided with a groove 59, along its inner edge, for a purpos which will be presently described.

I shall now describe the operation of my winder. First a mandrel of suitable diameteris set in place as shown in Fig. 5. Bar I5 is rammed against the mandrel by means of handle. 5U, and the bar is retained in place against movement by means of bolt I9. Next a wire of suitable diameter is led through 'groove 39 in the feed bar 38 towards the mandreland the free end of it is affixed to the outside surface Yof clamp 53bymeans of jaw 51. Side plateZ .is slidingly brought forward towards the mandrel till the Wedge shaped facey 34 of spacer'33 is in contact therewith. Head 28,. including theA spacer, is then vertically adjusted depending upon the desired pitchof the spring to .be made. thatrthe higher the spacer is raised, thecloser to each other will be vthe individual coils of the spring. The free end ofthe Wire vwhich is to be made into a spring, is manually drawn out of the feeder and is aixed to clamp`53 by means of'jaW 511', controlled by screw 58. The wire, 'leaving the feeder,passes to one side of the Wedge-shaped spacer 34,'being interposed-between the angular plate i2 and said spacer '34. What now isnecessaryris now to rotate the mandrel around its axis vby means of clamp 53. As they mandrel is rotated, the Wire is wound around the mandrel, the first coil of the spring beginning at the outer end of the feeder, going over the top of themandrel, continuing overthe surfaceY of the mandrel on the far side of the face of the spacer and completing the yturn on the side of the spacer remote from angular plate l2. As themandrel is continued' to be rotated, one'coil after another is being formed in this manner, the coils being separated by a distance equal to the width of the face of the spacer in contact with the mandrel. The mandrel, as above stated, is held in place within the V-shaped space between the angle plate yl2 and base m of my device, but it is heid there loose enough to permit the Vlongitudinal movement of the mandrel, thatis, the movement in the direction of theaxis, therate ofthe movement being regulated automatically by the pitchY of the spring formed, as above stated. For the purpose ofthe movement of the mandrel, the

It will be seen coils yof the spring may be considered integral therewith, so that the mandrel and the coil forms a kind of a worm in operative engagement with my said spacer. A spring 6|, on mandrel 52, as made from wire 62, is shown in Fig. 2.

Should it be desired to reverse the direction of the coils, the procedure differs only in this respect that the wire is led tothe mandrel from below through groove 59.

Itlvvillbe obviou's that -some changes may be made in the construction of the Winder as described by me, without departing from the inventive principle disclosed therein. What I, therefore, wish to claim, is as follows:

1. A spring Winder of the kind described, comprising a horizontal base, a plate with a Window therein, set at an angle to the base in a V-shaped formation, for the reception therein of a transverselydisposed mandrel, a sliding bar on said base, parallel to the side thereof, the end of said bar fitting into said Window tov wedge the mandrel in place, aY sliding member aflixed vto the side of the base, having a vertically adjustable head anda wedge-shaped spacer, projecting beyond the surface of the head into contact with said mandrel, and an elongatedfeeder to supply the Wire to form a spring to said mandrel.

2. A spring winder of the kind described, comprising an elongated base, a transverse, inwardly inclined platefat one end thereof, movable means on said base to wedge against `said-plate, a mandrel transversely disposed with respect to the base, a side member secured to the'base'in an adjustable longitudinal relation-thereto, a Wedgeshaped spacer on `said member, adjustable perpendicularly and in contact with the mandrel, a grooved feed bar on said base to conduct a wire tothemandrel and means removably aixed to the mandrel to rotate it aroundits axis and to grasp one end of the wire to be made into a spring. Y

3. A spring Winder of the wind described, comprising an elongated base, ra plate at one end thereof, inclinded inwardly into a yV-f'ormation with said plate for reception. of a mandrel within the apex of said V-formation, a slidingbar on the base to Wedge the mandrel into said apex, means to secure the bar in place, an upright'member on the side of the base-and disposed at right angle to said inclined plate, a Wedge-shaped lspacer in a vertically adjustable position-on the operative end of said side member, means toshift the member longitudinally with respect to the base, to bring the spacer into abutment with the side of the mandrel, va removableelongated feed bar aixed to said member to conduct a Wire to the mandrel, and means to be applied to the mandrel to rotate the same around its axis, and including means to grasp the free end of the wire.

LEONARD R. BUCZKOSKI. 

